Derivatives of 5-amino-1,3-dioxanes and method of making same



- radical.

Patented Sept. 11, 1945 UNITED STATES O'iFlgfE-ICE DERIVATIVES F -AMINO=1;3-BIOXANES AND METHOD OF MA ING-SAME Melvin De Groote, University City, Mo., assignor to Petrolite Corporation, Ltd Wilmington, l)el., a corporation of- Delaware No Drawing. Original application December10,

1943, Serial No. 513,780. rDivided andpthisaap- ;plication.Ju1y 26,,1944, SeriaL'No. 546,745

12 Claims.

oil emulsions, but which is also capable of variousother uses.

Another object-of =--my invention is to provide a practicable method for manufacturing said-new chemical product or compound.

Although one of the primary objects of -my invention is to provide a new compound or composition of =matter,-that is an efiicient demulsifier for crude oil emulsions of the-Water-in-oil type, said new compound-or composition" of matter has other uses, as hereinafter explained.

The compounds herein contemplated assuch, and particularly as demulsifiers, consist of reaction products derived by reaction between: (a) aeidicfractional esters of polybasic carboxy acids, in which at least one polybasic carboxy acid radical is attached to a monocarboxy detergent-forming acid compound selected from the class consisting of acids and esters; and (b) hereinafter described acylated and oxyalkylated derivatives of-5-amino l,3-dioxanes having '-the structural wherel-t is amember of the classconsisting of hydrogen,--alkyl, and alpha-hydroxyalkyl, R is amember of the class consisting of hydrogen,

-alkyl, aryl, and furyl, with the added proviso. that such dioxanederivative contain at least one unreactedalcoholic hydroxyl radical. Thecompounds above I referred to are obtained by acylation and oxyalkylation. The-acyl group can be introduced as part of an=amido radical,-or as part of an ester'radical, and is obtained from a-monocarboxy acid or equivalent having an acyl radical containing an unbroken chain of at least:8

carbon atoms. In other words, such acylradical may appear as an amido radical, oras an acyloxy For example, an aminodioxaneof the typepreviously described may be reacted-with a higher fatty acidsoas to forman amide. :The amide so obtained may be subjected to voxyalkylaamide may be subjected to oxyalkylation first This application is now'Pat- .carbon ..ZIOIHS -.or::m.ore, and :not more than 32 tion, particularly oxyethylation. Similarly, theand for that matter, one of such acyl radicalssclo may be present in-the ester form. and the other in the amido'form.

As to the manufacture of aminodioxanes which :are oneclasshof the reactants employedin'the manufacture of the hereinqcontemplated new compositionsof matter, reference. is, made to U. S. :Patent *No. 2,247,256, dated :June :24, 1941, to :Senkus,,.and :to ..U S. .Patent No. 2,317,555, dated .Apri1i27, ;1943,-.to:Robinette. It;is=-a matter of common knowledge-that .aminodioxanes are made by condensinganitroglycol .withanaldehyde and reducing the condensation product. ,The; synthesis :of isuchcompoundsiszdemonstrated by the following reactions:

5-amino-5-ethyl-1,3-dioxane TIlljfiSWVllikIlOWl-I' lihfil) certain monocarboxy organicacids. containing; an unbroken chain of eight carbon, atoms,:are characterized by-thefact that they combine with alkalies to produce soap or soap-like ,materials. ,These detergent-forming acids include fatty-acids, resin acids, petroleum acids, etc. --For the sakeofconvenience, these acids will be indicated by the formula R COOH. Certain derivatives of, detergent-forming acids react-. withs alkali toproduce soap or soap-like materials, and are ,the'obvious. equivalent of the unchanged or unmodified detergent forming acids; for instance, ,in'stead-of fatty acids, one might employ the chlorinated fatty acids. Instead of the resin acids,..one .might employ the hydrogenated resin acids. Instead of naphthenic acids; one ;might,-employ :brominated naphthenic ..acids,;etc. The fatty acids are of thetype commonly referred to ;as higher "fattytacids; and of course, ,tms. also true, in. re rd. t sde i at s of th kind indicated, insofar that such derivatives are obtained from higher fatty acids. The petroleum acids include not only naturally-occurring naphthenic acids, but also acids obtained by the oxidation of wax, paraffin, etc. Such acids may have as many as 32 carbon atoms. For instance, see U. S. Patent No. 2,242,837, dated May 20, 1941, to Shields.

In addition to synthetic carboxy acids obtained by the oxidation of paraflins or the like, there is the somewhat analogous classobtained by treating carbon dioxide or carbon monoxide in the presence of hydrogen or an olefine with steam or by causing metallic alkoxide or a halogenated hydrocarbon to react with chloroacetic acid or with potassium cyanide, and saponifying' the product obtained. Such products or mixtures thereof, having at least 8 and not more than 32 carbon atoms and having at least one carboxy group or the equivalent thereof, are as suitable for use as the conventional detergent-forming monocarboxy acids, and another analogous class equally suitable, is the mixture of carboxylic acids obtained by the alkali treatment of alcohols of high molecular weight formed in the catalytic hydrogenation of carbon monoxide.

Although any of the high molal monocarboxy acids can be converted into esters, amides or esteramides of the kind described, by conventional procedure, it is my preference to employ compounds derived from higher fatty acids, rather than petroleum acids, rosin acids, and the like. I have found that by far the most effective demulsifying agents are obtained from unsaturated fatty acids having 18 carbon atoms. Such unsaturated fatty acids include the higher fatty acids, such as oleic acid, ricinoleic acid, linoleicacid, linclenic acid, etc. One may employ mixed fatty acids, as, for example, the fatty acids obtained by hydrolysis of cottonseed oil, soyabean oil, corn oil, etc. In practising my herein described process for resolving petroleum emulsions, I prefer to use a demulsifier obtained from unsaturated fatty acidsfand more specifically, unsaturated fatty acids, containing a hydroxyl radical or unsaturated fatty acids which have been subjected to oxidation.

Previous attention hasbeen directed to the fact that one class of reactants included the aminodioxanes. tain a hydroxy hydrocarbon radical susceptible to oxyalkylation. r Y

As examples of the amino-l,3-dioxanes which may be included are the 2-phenyl-5-amino- 1,3-dioxanes, the 2-(3-heptyl) -5-amino-l,3-dioxanes, and the 2-propyl-5-amino-1,3-dioxanes, which have the following structural formulas:

R onkao-o alkyl, aryl, or furyl.

As to aminodioxanes containing a hydroxy alkyl 7 group, and particularly a hydroxymethyl group,

Some of the aminodioxanes may con-- reference is made to the substituted 1,3-dioxanes which may be represented by the following formula:

Where R represents an alkyl group, and particularly one having at least five carbon atoms.

As specific examples of the substituted 1,3-dioxanes which are included by the above generic formula, there may be mentioned 5-amino-2-(3- pentyl)-5-hydroxymethyl-1,3-dioxane, 5-amino- 2-hexyl-5-hydroxymethyl-1,3-dioxane, 5-amino- 2-(3-heptyl) 5 hydroxymethyl-1,3-dioxane, 5- amino-2-hendecyl-5-hydroxymethyl-1,3-dioxane, 5-amino-2-octyl 5 hydroxymethyl-1,3-dioxanc, and the like.

As specific examples of the preferred reagents, the following are included:

5'-amino-2- (3-amyl) -5-hydroxymethyl-1,3-dioxane 5-amino-2-hexyl-5-hydroxymethyl-1,3-dioxane 5-amino-2-(3-heptyD- 5 -hydroxymethyl-l,3-dioxane 2-propyl-5-hydroxymethyl-5-amino-1,3-dioxane 2-propyl-5-methyl-5-amino-1,3-dioxane 2-(3-heptyl) -5-methyl-5-amino-1,3-dioxane 2-phenyl-5-methyl-5-amino-1,3-dioxane 5-ethyl-5-amino-1,B-dioxane The oxyalkylation of compounds having a labile hydrogen atom is a well known procedure. For instance, the procedure of subjecting amines, amides, phenols or alcohols to the action of an oxyalkylatingagent so as to introduce a repetitious ether linkagebetween'the oxy en atom or nitrogen atom and the labile hydrogen atom, is well known. In view of what is said hereinafter, it is obvious that the oxyalkylation of the 5- amino-1,3-dioxanes, or the amide derived therefrom, is simply a sub-generic aspect of the well. known methods which contemplate oxyalkylation of amines, amides and alcohols, regardless of source or chemical structure.

Oxyalkylating agents are those containing a reactive ethylene oxide ring. As typical examples of applicable compounds, may be mentioned epichlorhydrin, glycide, alcohol, ethylene oxide, propyleneoxide, butene-2 oxide, butene-l oxide, isobutylene oxide, butadiene oxide, butadiene dioxide, chloroprene oxide, isoprene oxide, decene oxide, styrene oxide, cyclohexylene oxide, cyclopentene oxide, etc. I particularly prefer to employ oxyalkylating agents having 2 and not more than 4 carbon atoms, such as ethylene oxide, propylene oxide, butylene oxide, glycide and methylglycide. My particularly preferred oxyalkylating agent is ethylene oxide.

Other halogenated epoxides, which are the functional equivalents of epichlorhydrin, are described in U. S. Patent No. 2,321,037, dated June 8, 1943, to Marple and Evans.

For the sake, ofbrevity, subsequent examples are concerned largely with derivatives in which the high molal acyl radical is derived from higher fatty acids. Attention is directed to the prior description of other equally suitable high molal acids.

Example "1 1 pound mole :of :2epropyl 5-hydroxy methyl- 5-amino-1j3-dioxane is reaetedwithil poundvmole of i ricino'leic' acid, or a suitablevequivalenmsuch -as 1 rpound'mole of ethyl;ricinoleate,wor*x ne- *third' pound mole of triricinolein, so' as to spinduce the corresponding; amide. :Thereactionibetween the amide wand I the '1 acid :is conducted I the conventional manner. The two reaotantsare -mixed' together at a2temperature'abovethernielting point, which additionally expeditesrthe 2-178- moval of water of "reaction. fEheiehmina-tion of water is hastened iby con'stant :Pstirring kduri-Iig the period 'of 'reaction. :Reac'ticn takesiplaceiat comparatively low temperatures, for instance, 1130- 145 C., and iis e'xpedited at high -temperat'urea for instance, ice-130 C. =:In-=' thereabsenoe of pyrolysis, and especially when aCEgIYEEI-idQliSn heated in the -absence of a ssolvent, 0118703117 686 "a temperatureas high as 2201!).2170 240 C..,mnd -speed l up the reaction and increase the zyield "of -=amide. In an'y event,ithe 'temperaturexemp1o'yed for amidi'fication 'imustibe below the:pyrolytic I point of the reactants. ":The passage eof 2 a dried inert -gas through theireaction' mass; dur- "ing ami'dification, hastens -the' reaetion, and also "tends to-decreasa anylunreacted-material. sThe completion F of the-reaction i cambe determinediin ---monia. All s'uh procedures are comparable-with that employed foittheacylationofs0mewhat sim- "ilar =aimines having homocy'clic radicals, for instari'ce, cyclohexylam ine, benzylamine, =afiiline, etc. Sometimes amidification is conveniently conducted in tl' ie presence or an inert s'olve'nt,

for instance, *xylene, whi'ch is permitted-to 'di'stfl during thereaction; and assists the: elimiuna't'iomof water. "Xylene and water vapors are condensed, sep'arated, and the x'ylene P returned i to the :reaction chamber' 'for re-use. "Such' inert solvent -must -be 'iinmiscible with the vapors being removedfifor -instance,"=water, and-*mustbemiscible with both reactants. Furthermorej-fit must be readily 'volatilized at a temperature below the pyrdlytic point of the reactants. 'oonventional -in connection with esterlfication hereinafter"referredto. Any procedure employed niu'st' guard against -Ss 'of" amine during amidi- -fiea'tion, or else: anexcess of the amine-must be employed and subsequently must lee-recovered. 'If :1

a ":lyceride' is' used, and in many ways this isthe "most desirable procedure, one mustremove' the "glycerol formed'by a salt --watef washor thelike.

The use of the glyceride 'k'eepsesterformation,

by reaction with the hydroxymethyl group at a minimum.

-- *AMIDE Example-'2 =Such use is E3 moxaneiis substi-tuted for i poundrmolesofrzpropyl=-5=hydroxyniethyle5 amino; dioxane' tin the'=precedingiExample l.

I AMIDE Example-r3 r a The "same procedure is-" followd as in 'preceding-"eXamples;*exceptthat*the' raW materiaI em- *ployed is "2- (3'=heptyl)-'-5 -meth$'l5-amino 1 33- Hi- 'o'xane.

-Amna lEwampleret lflhevsaimesprocedure is followed .as'" m .pr.eceding (examples, :except' that Lthe raw vmaterial em- .ployed ,i fzephenylfiemethyll5-axnino1,3dioX- 13,119. v

AMIDE .J-EZBG1IZPZ8Z5 The same procedure zisifollowed as in preceding examples, except. thatitherrawimaterialremployed is 5-ethy1-5eamino- 1,3edioxane.

.. AMmE 'Ezcamplelfi I The same procedure is followed as in preceding examplesgexcepti thatithezraw material-employed is 5-amino-2-(3-amyl) e5=hydroxymethyl-1,3di-

.oxane.

. Ammr:

iEwampZe" 7 The same procedure is followed as in preceding examples, except thatitheraw material. employed is 5 amind-2-hex'yl-5-hydroxymethy1 1,3-dioxane.

iExamplew The same procedure is followedas' in preceding examples, except'that the rawmaterial employed is 5-amino-2-( 3 heptyl) -5-hydroxymethyl 1,3 dioxane.

"AMIDE Ezrarrzple -ii I -01eic aeid olein:-or.oley1rch1oride, ia substituted iorrioinoleic Gacid' iii-Examples :l..toi.8,- lpreceding.

Example 10 1' Laurie zacid; laurin or ia-uryl chloride via-substi- '-:-tuted: forricinoleiczacid' in' Examples 1=r to 8mm;- ceding.

OXYALKYLATED 5=AMINOL-3ZDIOXANE Example 1 1" pound mole of 2'-prop'y1-5 -hydroxyamethyl-5- amino- 1,3-dioxane is oxyalkylated with- 4: pound moles of ethylene oxide. "The oxyethylation is conducted in a closed vessel in a stepwise "man- 'ner. 1' pound mole of ethylene oXideis-adddto 1pound' molejof the aminodioxane. One 'halfof 1% of sodium methyl'ate is'add'ed' asa catalyst. "The reaction takes place readilyyparticularlyat temperatures moderately abovetheboi-ling" point of water. Fo1'instance,.130rC. If the reaction does not take place readily at this temperature, one may employ a somewhat higher temperature, forinstance;lavetweem+150 C. ulmanyeevent, itiis :best' to: conductthe reactiomirresuch..arsman- "nf that there is no pressurei due 'to unreaotd ethylene #oxide, or-'- otherr oxyalkylating reagent-mot -more than 200 pounds. This maybe accomplished by using less .ethylene oxidege. gr,- onehalf pound mole for the, firstportion instead of one mole. 1 mole of ethylene oxide should be absorbed readily within 2-8 hours, when reaction is complete, as indicated by a drop in gauge pres- .sure, due to the absorption of the ethylene oxide; .a second portion of the reactant, for instance, an-

other mole of ethylene oxide, is added and reacted in the same manner. The same procedure is'einplayed so as to introduce the third mole of'th'ylene oxide. Three moles of ethylene oxide per mole of aminodioxane should be introduced without difliculty in not over 24 hours, and in many instances, can be introduced in one-third such time. Speed of reaction is dependent, 'inpart, on

effectiveness of stirring or agitation, insofar that the reaction may take place largely at interracial surfaces.

OXYALKYLATED 5.-AMINO-1,3-DIOXANE Example 2 1 OXYALKYLATED .5-AMINO-L3-DIOXANE.

Example 3 The same procedure is followed as in Examples 1 and 2, immediately preceding, except that 8 moles of ethylene oxide-are introduced per mole of aminodioxane instead of 4 moles.

The same procedure is followed as in Examples 1 and 2, immediately. preceding, except that 12 moles of ethylene oxide are introduced per mole of aminodioxane instead of 4 moles.-

The same procedureis employed as in Example 1 to 4, immediately preceding, except that propylene oxide is substituted for'ethylene oxide; -"Propylene oxide is less reactivethan ethylene oxide, and it may be necessary to use a somewhat higher temperature of reaction and a somewhat longer period of reaction. Such increases in temperature and time of reaction, as compared with ethylene oxide, are only moderate. -Even greater amounts of the alkylene oxide, for instance, 18-24 moles per mole of amine, may be used. In the case of a hydroxylated amine, 24-36 moles may be used.

Attention is directed to the fact that previous examples, exemplifying amides oxyalkylated' aminodioxanes, represent intermediates The remaining series of examples all, represent new compositions of matter. They arebo'nveni'ently divided into three classes, to wit; Oxyalkylat'd amides, esters, and esteramides. Thes -summasions are preserved in thesubsequentfsubjecb matter for convenience.

OXYALKYLATED Am ne; N

. Example f 1-11. 1 pound mole of the amide derived fromnthe selected aminodioxane, as describedrin *Amide, Example 1, preceding, is treatedWith anjoxyalkylating agent in the same ,manneras employed;

; an amide.

.methylate, or other alkali, will serve. alkylation of an amide may take considerably -kylamines havin v 6-10 carbon atoms, such as ootylamine. The r oxyalkylation of high molal amides is well known and requires no elaboration.

In general, the procedure which I prefer to employ is substantially that described in the oxyal- -kylati0n of the unamidified aminodioxanes in the precedingexamples, except that the temperature of: oxyalkylation in the initial stages mustbe suf- --ficient to insure that the amide is a liquid, and particularly so, when derived from high molal saturated acids, such as stearic acid. From 6 to 12 moles of the alkylene oxide are used per mole of amide, as a minimum, and as many as 20 moles as-a maximum. If a hydroxylated amide, de-

- rived from a hydroxylated amine is used, or when in other instances, one may use 12 to 18 moles of the alkylene oxide per mole of amine. Even higher ratio may be employed, if desired. 2 The introduction of the oxyalkylene radical almost invariably yields a more fluid product, i. e.,

a product having a lower melting point. Thus, 2

the temperature of reaction employed in oxyalkylation can be reduced after the initial reaction has taken place, i. e., after partial oxyalkylation.

There is no objection to employing an inert solvent during the early stages of oxyalkylation, although such solvent may, in a few instances, cease to be a solvent after partial oxyalkylation 'takes place, and thus, would have to be removed as a matter of convenience, during the later stages of oxyalkylation. Such solvent, however,

would serve its purpose, because when removed, the partially oxyalkylated mass should be substantially fluid. This is readily understandable by reference to an analogy where a solid, such as lecithin is dissolved in xylene and subjected to oxyethylation. As oxyethylation proceeds, the product usually becomes xylene-insoluble.

,Under ,such circumstances, it is generally better i to remove the xylene before proceeding with the further, oxyethylation of the fluid derivative. .Many, in fact, the majority of reactants described, can be suflicientlyoxyethylated without xylene removal. Oxyalkylation of the aminodioxane can be conducted, as a rule, without a catalyst, if desired. It is preferable, however,

to have a catalyst present in the oxyalkylation of One-half of one percent of sodium The o ylongen'and may take'definitely high temperatures of reaction. As far as practical, it is better rapidly-enough, under such circumstances, then tripled. -If, however, the reaction does not go increased temperatures short of a1 pyrolytic point vmay beused, but the preference, particularly when employing ethylene oxide, should be to not exceed 250-300 pounds gauge pressure. It is 1 again pointed out that this entire procedure is the one that is used in the conventional, oxyalkylation of amides, and may be varied to conform to such procedure.

OXYAILKYLATliD Amps Example 2 as;.18: to -24.moles of :the alkylene oxide maybeintroduced-permole of; amide;

OXY-ALKYLATED Aivlma Example. 3v

Insteadof employing:- an amide ofthakind examplified by Amide, Example 1; there is'used instead amides-exemplified by Examples 2 to: 10; inclusive.

ESTER Eimmple 1' 1 pound mole' of the=oxyethylated aminodioxfane. described under Oxyalkyl'atedi aminodioxs ane, Example-1}. precedingyis esterifiedwith 1 poundmole" of ricinoleic' acid or: ethyl: ricinoleate in the conventional mannerp Thecprocedure'em; ployed is th'esame as that: employed 'forthe esterificationzof' triethanolaminazor particularly; tri; ethanolamine which has :firstt been; treated: with; several mo'les, for instance; BitO 9'.moles-:ofiethyl ene oxidez Since the reaction is'conducted. in; the absence of" catalysts whichi usually arei em;- ployed in esterification, such asbenzene-sulfonic; acid; or the like; itiiis necessary'td use aifairly high. temperature, andgenerally speaking, one employs a: temperature justf short of: 200? 6.. Even a: higher. temperature. for: instance, 2402-25). 6., canbet-employed;,providedsthere' is: no pyrolysis: Iftdesired, theareaction-can berhas; toned; and; for thatmatter, conductedfat-a some=- what: lower temperature. by the use of" an. ester" or amide as the? acylating agent andxalso' by'pasrsagenf a dried inertgasgsuch as nitrogen through" thereaction: mass while subjected: to "constant: agitation. The-."reactioniisgenerallycompletevinr 3?'to: 5 hours.' as a'=.minimum" period" of" time; and": may: take: 12 Fto 18 hours; in some-instances;

ESTER" Example-2 Other' oxyalkylated aminodioxanes; as de-'- scribed under the headings O'xyalkylat'ed aminodioxanes, Examples- 2' to 5, are substitutedfor the particular oxyallylated' aminodioxane' described in the'preceding example.

ESTER AMIDE.

Example 1 Elmmplezfl Thesame procedure is followed, except'thati lauryl chloride is substitutedffor'oleyl chloride in Example" 1, immediately preceding ESTERwAMIDEr Emamplcfi Ricinoleyl chloride is. substituted for. oleyl .chloride.

ESTER AMIDEh Example 4 The :same procedure. is followed as in. thethree examples immediately, preceding,.except-that .5.- amino- 2..- hexy1 55hydroxymethyl-1,3 dioxane and: 5-amino-2- (S-heptyl) -5-hydroxymethyl-1,3 dioxane are substituted for 5-amino-2-(3-amyll- 5 -hydroxy-methyl-L3-dioxane.

'I he productionof-esters-of higher fatty acids by use. of the acyl chloride as areactant-is well known and requires no description. Th'e same procedure is followed; as,,f0r example; in the reaction between: glycerol and. oleyl chloride. Ifdesired, esterification in the. preceding. examples may be conducted by means of the acids insteadof the acyl chlorides, and may also be conducted in the presence ofa conventional esterification catalyst, such as sulfuric acid, benzene sulfonic acid, or dry hydrochloric acid gas. Oxyalkylated amides of the kind described seem to esterify a little less readily than the usual alcohols. However, any conventional procedure can be employed, and particularlyone may employ the use of an inert solvent, such as xylene, in the manner previously mentioned in regardjt'o amidification. The temperature'of esterification is not determined by the presence of an inert-solvent such as xylene, and may vary between -180" C., or even higher. Time of" esterification may vary from 3-30 hours: Procedure'has already been indicated for hastening esterification reactions.- See U. S. Patents Nos. 2,075,107; dated March 30, 1937, to Frazier, and2,264,759,' dated December 2, 1941, to Jones.

Incidentally, it isaobvious that certain variants may be employed,.withoutdetracting from the general nature of the compounds herein described. For instance, the selectedamin'odioxane' might be treated with a-lowi molal carboxy acid having less than seven carbon atoms, such as acetic acid, hydroxyacetic acid, lactic acid, butyric acid, etc. The amide of the-lowrnolal'acids so obtained could be subjected" to oxyalkylation, and then subsequently subjected to esterification, with a high molal'ca-rboxy acid-in-the manner described. Similarly; the aminodioxan'e', and especially the examples in which there is no hydroxymethyl group, could be. subjected. to-the. action of any conventional alkylating agent, such as an alkyl halide,-. benzyl chloride; methyl sulfate, or the like, so as to produce aisecondary-amine. Such secondary amine "could .be. subj ected' to oxyalkyla tion in the manner previously described, and subsequently esterified with a high molal acid. Similarly, an amide: derived from aminodioXane having a hydroxymethyl group mightbe subjected to treatment in the manner described in U. S. Patent No. 2,151,788, dated March 28, 1939, to Mauersberger. In certain of the types of compounds previously described, there is no acyl radical directly attached to the amino nitrogen atom. Such products show basicity comparable to triethanolamine or esterified triethanolamine, or the esters. of. oxyethylated triethanolamine. Where such basicity. exists, obviously. the product can housed in the form of .asalt, .as well as in the form of the freebase, or. hydrate, i. e., combination Withwater. Salts of lactic acid, acetic acid, nitric acid,, etc.,.. are particularly, valuable for. various. purposes hereinafter indicated;

As far as I am aware, the amides and'oxyalkylated. derivatives. herein described, are use fulnot. only as intermediates, as in the instant case, .but.also.. may. be used as demulsifiers for water-in-oil emulsions, andas abreak inducer in doctor treatmentv of the kind intended to' sweeten. sour. gasoline. However, they; are not nearly. asefiective for the purp,0se,',as the new compositions. of matter herein. claimed. Such simple compoundsv are. not. claimed. as.such; or

Amide H (O 01H) Oxyethylated ester R CH (R') O I 'moowogrmn o o R C O Oxyethylated esteramide If the aminodioxane is hydroxylated, the derivative may be further complicated by the presence of three hydroxyethylene radicals, thus:

In all of the above n varies from 3 to 12.

Examples of polybasic carboxy acids or anhydrides suitable for use in the manufacture of the demulsifiers used in the present process are maleic anhydride, maleic acid, "fumaric acid, oxalic acid, succinic acid, phthalic acid, phthalic anhydride, citric acid, citraconic acid, etc. Other suitable polybasic carboxy acids may be prepared by the diene synthesis, which involves condensation of alpha-beta unsaturated acids, or anhydrides with compounds containing conjugated double bonds. For example, the condensation of maleic anhydride with alpha-terpinene yields a dicarboxy acid which is perfectly suitable for use in the manufacture of the demulsifiers contemplated herein. Other polycarboxy acids may be prepared similarly by the diene synthesis reaction involving the condensation of an alpha-beta unsaturated monocarboxy acid with a carboxy acid containing a conjugated double bond. For example, crotonic acid may be condensed with abietic acid, which contains a conjugated double bond, to yield a dicarboxy acid suitable for the use in the manufacture of the demulsifiers contemplated herein. Another variant is the resultant obtained by reaction between maleic anhydride or the like, and an unsaturated material, particularly a fatty acid or ,glyceride, which does not contain a conjugated ethylene linkage. Such product may be monoethylenic, as in the case of oleic acid or olein, or may be polyethylenic, as in the case of linoleic acid or linolein. In the latter case, the double bonds are of the isolated type. Since the herein described compositions of matter, and particularly those employed as a demulsifying agent, are obtained by esterification reactions involving an acidic fractional ester, as previously described, and since such fractional ester, in turn, is derived by esterification reactions between (I) compounds containing a detergent-forming monocarboxy acid and (II) a polybasic carboxy acid, it is necessary that either (I) or (II) contain an alcoholic hydroxyl group. Such alcoholic hydroxyls are present in some detergent-forming acid molecules, and when such acids are employed, they may be esterified directly by the polybasic acid. Obviously, the esters, salts, and other derivatives of such acids which leave the hydroxyl part of the oxyacyl group intact, may also be employed. Examples of suitable hydroxy detergent-forming acids or their functional equivalents are: hydroxystearic acid, ricinoleic acid, trihydroxypalmitic acid, hydroxynaphthenic acid, tridihydroxy-stearin, triricinolein, butyl ricinoleate, ethyl dihydroxystearate, ethylene glycol diricinoleate, etc. Hydroxylated polybasic carboxy acids may react with any high molal acids.

In some cases it is desirable to form a partial ester of these hydroxy detergent-forming acids with a polyhydric alcohol to yield a compound -having more than one hydroxyl group available etc. Acids and esters prepared from such blown or drastically-oxidized oils, are regular articles of commerce obtainable on the market. Other detergent-forming acids suitable for preparing the present demulsifying agents may be prepared by blowing or oxidizing unsaturated fatty acids, such as castor oil fatty acids, soyabean fatty acids, oleic acid and the like.

When the detergent-forming acid itself does not contain an alcoholic group, it may be reacted with a polyhydric alcohol to yield a partial ester having one or more residual hydroxyls available for esterification with a polybasic acid. Note what has been said in regard to reaction with hydroxylated polycarboxy acids.

Conversely, the polybasic acid used may first be esterified with the polyhydric alcohol to yield esters having unreacted hydroxy groups available for esterification of the detergent-forming acid.

need notadd a polyhydricalcoholfurness'dcsired:

Ifithe detergenteforming materiahlolesmticom enciglycohmonostearatezandia polyhasicsacidz In; tain an alcoholic :hydroxyliradical; I liaveef'nnnd; case; as: well,; they; result: on reaction is: as that the reaction is-usuallyt easier. to control, in simple ester containing one or moresresidualbariorder to obtain the desired final products, if the bmwligroupse: polyhydric alcohol intended" to be used is first 6 Mil wefermdrreaotantsaofithesacidiccfractionaii reacted with the detergent-forming; acid-1 and the ester tmzosareiderivedjfrom caston oiliandiphthai; fractional -.ester so;obtained;subsequently;reaetedi ioanhitdrides. Such compositionszperrsewaresoidi. with thepolybasic acid; Eorrinstan'cwsee-illls.Batent-No. 2;166 ,432,.datedt Examples qof polyhydricialcoholsfiwhichimayiba Ju1l 18;a1939,;tcrfl3efirooteg pageizfromithe head? employed-torbring/about esterformatiombetweem inw ntermediateeamine;.Example;9,i tupag 5.55 detergent-forming acids-andipolybasic .acidsearez; headings Gompositiom-ofi: matter; Example: 14'. Glycerol, dig-lycerol, a1pha,. beta,.gamma .butanee Seezllr. Etenti No.2 27166333,. datedi; July: 18;: triol, beta methyl glycerol, ethylene glycol, dieth- 1939-, to De Groote, page 4 from the headingiqm ylene glycol, triethylene glycol; 1*,3 -propane diol, termediatezamine: Examplea8ito:pager7 heading isobutylene glycol, ethylene=glycol glycerol ether, 16EGampositiomotzmattergilxampleili diglycerol. monoethylene glycol etheig. mannitol, Iffi. trh'icinol-eine be indicated by the: following: sorbitol, sorbitan, mannitanhsorbitol. monobutyl: formulae: ether, erythritol, adonit0l-,., dihydroxya thiopene ir. 0E1R' -(O0 CH,3

etc.

For-- the -purpose of this".invention,.polyhydmx-yr203 H; amines: areiconsidered the-functional.equivalentss onlmooo-clz-n of polyhydroxy alcohols. Examplessof-suchcomw pounds are: Monoglycerylamine, triethanolamine, diethanolamine, phenyldiethanolamine, dicyclohexanolamine, cyclohexylpropanolamine, benzyldiethanolamine, pentanolamine, diethanolmethylthem reaction products of phthalic..anhydrid or-; plitlialic acid; maxi-be. indicated; in theiollowing; mannen, althougti for; purposes of. convenience,, plitlialic; acidlis. not". shown. in the. form. of; the; amine tripropanolfammer etc Ethersv derivem usualnsomer; where,,oficourse,.thetwo-carboxyl from this Class: compoundvskor" imcombjnatiom radicals. are. attached to. adjacent carbon atoms;v with the. previously mentioned-diols,-.triols;..etc;,. (B): are included. so:

It. shouldbepointedout. thatlthe hydroxy es-- ters conveniently employed for-.reactiomwithz-polyooiolntc oozoni basicaoidsto formsthe.intermediatesof.therprese H= ent invention, need notnecessarilybe preparedibyg ()H; f reacting the detergent-forming acid with the polyhydric alcohol directly: In many instances, (room it is more convenient'tor-prepare these hydroxy esters by re-esterification of fats, oils, drasticallyenfnj guojgm oxidized oils, or detergentefcrming: acid"- esters.v with polyhydric alcohols, Florexampla. a fat; such as stearin maybe-re-esterifiedlwithrglicerim to form glycerol monostearate whichimay be subs sequently reacted". with a. polybasic..a;cidZ- The. preparation of such fractionallestersderivedifrom fats, oils, and drastically-oxidized oils, is well known, and the products are sold" commercially 000E under various names. Similar products may be 00 R; 0 obtained by re-esterification of the o1ls, fats, dras- (D) o C 0 tically oxidized oils, andidetergenteforminggacid N esters with" other polyhydric'" alcoli'ols;.,such, as. mooQononncoo: B5.

glycols, sorbitol, mannitol, polyliydroxyamineag. or other, polyhydric. alcohols; andsucri products may be conveniently employed"for'themanufam 'ooomscoo. 1 1,.-

ture of the demulsifying' agentswofthe"present? process; Analogous partiafestersiare.obtainedi C0011 from rosin acid, naphthenic acid; an'dtlieflilier Often it is convenient to perform the resterifl' (E) cation simultaneously witlnthei est'erification of the polybasic acid For. example, a mixture of COOJKCOOZCHZ a fatty oil, a polyhydric alcohol, and a. polybasic 60* acid may be mixed 'andl'ieat'edtogethertoyield an intermediate. If a -liydi'oxylated' oilj such as;

QDQRTQQOL-CB. for example, trii-icinolein", is employed, tlrerr-onv The formation of one' kind of intermediate contemplated for uswaccording to my invention; lfil of "related p cts immediately. may be exemplified by' the-*esterificationreaction present" themselves, for instance; esters 'derivedby between a-polybasic'acid and ricinoleic acldi Ifli reaction'witli'ricinolcicacidi IiYG OXYSt l this casethe detergent=forming acid compound? diliydioxystearicacidi' andth'e like; ot'rthecorrecontains a single hydi'oxyl group; and"the'reaction To Sp esters derived from 9 Y l" obviously will yield simple ester containing a ethers, su h a fiy s y l d yl n lyresidual' carboxylic acid-group; but no residual col, which contain nolfreeshydroxyl radicals athydroxyl groups; tached to the glycol radical or residue. Similarly,

The formation of" a second-"'type of product one mi fi h p deYiVBdjfTOmmOHd-HK? maybe exemplified by thereactionbetweemethyB di'ic al M1 n" instance; ethyl riolnolat:

propyl ricinoleate, -sodium tricinoleate, .a'myh' amine hydroxystearate, etc. It. is intended to in-" clude blown oils.

In the examples shown above, where: the ester polybasic acid and its functional equivalentan'd' a hydroxylated fatty material of the kind described, is characterized by the presence of at least one free carboxyl radical.

Where reference is made to ricinoleic acid, hydroxystearic acid, dihydroxystearic acid, a hydroxy fatty acid, and the like, it is evident that certain simple derivatives; such ,as the halogenated compounds, etc., are the obvious functional equivalents; for instance, chlorinated triricinolein, may be. employed instead of triricinolein. Brominated recinoleic acid might be employed instead of triricinolein. Brominated ricinoleic acid might be employed instead of ricinoleic acid. In these instances the hydroxylated fatty material, notwithstanding modifications of the kind indicated, still has the same functional properties as the unmodified hydroxylated fatty material,

ducing an effective demulsifying agent is concerned. In the hereto appended claims reference 7 to a hydroxylated fatty material includes such obvious functional equivalents.

The second of the aforementioned patents describes such materials as diphthalated dlricinolein, dimaleated monostearin, dioxalated monoabietin, dicitrated mononaphthenin, etc.

Although the compounds or compositions of matter herein described may be made in any suitable manner, it is obvious that having obtained an oxyalkylated and acylated amlnodioxane having an unreacted hydroxyl radical of the kind previously described, all that one need to do is to react such hydroxylated aminodioxane derivative with the acidic fractional ester to produce a compound of the kind herein contemplated. Such reaction is illustrated by the following examples:

COMPOSITION or MATTER Example 1 COMPOSITION or MATTER Example 2 I They same procedure is followed as in Exam-, plel, immediately preceding, except that triricinolein triphthalate obtained by reacting 1 mole of castor'oil with 3 moles of phthalic anhydride.

,Co ivrPosITIoN or MATTER V Example 3 The same procedure is employed as in the preceding example, except that the time of reaction is increased somewhat and temperature of reaction increased somewhat, for example, up to 200 G.,"and as long as .6 to 8 hours to insure eliminationof one-half to two-thirds of the acid value,"'di1e to'the phthalic anhydride carboxyls.

COMPOSITION or MATTER Example 4 The same procedure is employed as in Examples 1 to 4, immediately preceding, except that the superglycerinatedfat or fractional ester obtained by reaction between 1 mole of acylic diglycerol and 1 mole ofoleic acid is reacted with 2 moles or 3 moles of phthalic anhydride to give a' 'diphthalate or triphthalate, and such acid phthalates areused in the same manner as the acidp'hthalates derived from castor oil.

- COMPOSITION or MATTER Example 6 The same procedure is employed as in the previous 5 examples, except that one employs 1 mole of the material described under the heading Ester',fEx amp1e 1, or Ester, Example 2, instead of. the reactants described under the headings .Oxyalkylated amide, Example 2 and Oxyalkylated amide, Example 3.

COMPOSITION or MATTER Example 7 .The same procedure is followed as in Examples 1 to ,5, preceding, except that a material of the kind exemplified by Ester amides, Example 1," "Ester amides, Example 2, Ester amides, Example 3 and Ester amides, Example 4, is substitutedinstead of reactants described under the headings Oxyalkylated amide, Example 1, "Oxyalkylatedamide, Example 2? and Oxalkylated amide, Example 3.

Y Composition of matter Example 8 The same procedure is followed as in Examples 1 to 7, immediately preceding, except that maleic anhydride, adipic acid, citraconic anhy'dride, succinic acid, or some other polybasic acid, particularly a dibasic acid, is substituted for phthalic anhydride in the preceding examples,

The acylated and oxyalkylated aminodioxane of the kind previously described, must contain at least one, and preferably more than one, alcoholic hydroxyl radical. Such reactant may be considered for the sake of simplicity as being in the class of an alcohol, i. e., a monohydric or polyhydric alcohol. If an alcohol is indicated by theformula Y.'(OH)n, where n indicates the number 1, orv more, and if a polybasic acid body be indicated by the. formula X'(COOH)n, where it indicates the number 2 or more, then the reaction between a monohydric alcohol and a polybasic acid will result in a compoundwhich may be indicated by the follownig formula:

where it indicates the number 1 or more, and.

which is in reality a contraction of a more elaborate structural formula, in which X" and Y are joined by a carlboxylradical or residue; Assuming, however, as would be true in the majority of cases, that the aminodioxane actually would be polyhydroxylated, and that the acid body would be polybasic in nature, for instance, if one employed triricinolein diphthalate,,,then examination'reveals that the formula might result in a combination, in which there were neither residual carboxyl radicals, nor residual hydroxyl radicals, or might result in compounds in which there were residual hydroxyl radicals, and no residual carboxyl radicals, or compounds where there might be residual carboxyl radicals and no residual hydroxyl radicals; or there might be both. This is indicated by the following:-

in which q indicates a small whole number (one in the case of a monomer, and probably not over 20, and usually less than 10) and m and n indicate the number 1 or more, and m" and n" indicate zero or a small or moderately-sized whole number, such as zero, one or more, but in any event, probably a number not in excess of 40. Naturally, each residual hydroxyl could combine with a phthalic acid body or its equivalent, or with a similar compound derived from a tribasic acid, such as citric acid; and in such event, there would be a large number of free or uncombined carboxyl radicals present, possibly 10 or. 20, or more. Actually, the preferable type of reagent would be more apt to include less than 10, and in fact, less than 5 free hydroxyl radicals. It is not necessary to remark that the residual carboxyl radicals can :be neutralized in any suitable manner, such as conversion into salts, esters, amides, aminoesters, or any other suitable form. Usually, such conversion into salt form would be by means of sodium hydroxide, potassium hydroxide, calcium hydroxide, magnesium hydroxide, ammonium hydroxide, amylamine, butanolamine, ethanolamine, diethanolamine, triethanolamine, cyclohexanolamine, benzylamine, aniline, toluidine, etc. Conversion into the ester would be by means of a monohydric alcohol, such as methyl alcohol, ethyl alcohol, propyl alcohol, butyl alcohol, hexyl alcohol, octyl alcohol, decyl alcohol, ethylene glycol, diethylene glycol, glycerol, diglycero, triethylene glycol, or the like. One

could employ an aminoalcohol so as to produce an ester.

If a tricarboxy acid, such as citric acid, is employed, then at least theoretically two moles of the aminodioxane derivative might react with one mole of the citric acid compound. Similarly, as has already been pointed out, a large number of molecules of a polybasic acid compound might combine with a single molecule of a highly hydroxylated aminodioxane. For practical purposes, however, I have ioundthat the most desirable products are obtained by combinations, in which the ratio of alcoholic aminodioxane to the polybasic acid is within the ratio of 3 to 1 and 1 to 5, and in which the molecular weight of the resultant product does not exceed 10,000, and is usually less than 5,000, or perhaps less than 3,000. This is particularly true, if the resultant product is soluble to a fairly definite extent, for instance, at least 5%, in some solvent, such as Water, alcohol, benzene, dichlorethyl ether, acetone, cresylic acid, or the like. This is simply another way of stating that it is, preferable, if the product be one of the sub-resins, which are commonly referred to as an A resin, or a B resin, as distinguished from a C resin, which isa highly infusible, insoluble resin (see Ellis,- Chemistry of Synthetic Resins, 1935, page 862 et seq.)

In recapituating What has been said previously,

a hydrogen ion equivalent, such as a metallic atom, organic radical, etc.

My preferred demulsifier is selected from one of the various types in which there is present a basic amino nitrogen atom. The expression basic amino nitrogen atom is used in'its conventional sense.

Unsaturated groups, or negative groups, if substituted for one or more of the hydrogens on ammonia, reduce the basicity of. the, nitrogen atom to a remarkable degree. In general the presence of one negative group linked on the nitrogen is sufficient to destroy the ordinary basic properties. Textbook of Organic Chemistry, Richter, 2nd edition,page253;) a

Reference to an amine and the subsequent amino compounds. is intended to include the salts and the anhydro base; as. well as, the hydrated base, since both obviously are presentiwhen a water-continuousemulsion is treated with an amine or amino'compound. y 7

In an aqueous solution of theamine the anhydro base, R'NH2, the hydrated base and the two ions are all present. Richter, v. s. page 252.

In the hereto appended claims reierence to radicals derived iromolefine oxides is intended to-ine clude glycid. In other words, in the case. of propylene oxide, it is intended that hydroxy propylene oxide be included.

Materials of the kind herein contemplatedare usefulas wetting, detergent, and leveling agents in the laundry, textile, and; dyeing industry; as wetting agents and detergents in the acid wash-- ing of 'fruit; in the acid washing of building stone and brick; as a wetting-agent and spreader in the application of asphalt in road building and the like; as a constituent of soldering flux preparations; as a flotation reagent in the flotation sepa-- ration of various minerals; for flocculation and coagulation of'various aqueous suspensions ,containing negatively charged particles such as sewemulsifiers for cosmetics, spray oils, "water-repel These uses are by'no However, the most important phase of the present invention, as far as industrial application" water or brine in crude petroleum. I

I have found that the chemical compounds or reagents herein described; which are particularly desirable for use as demulsifiers, may also be used as a break inducer in doctor treatment of the kind intendedto sweeten gasoline. See U. S. Patent No. 2,157,223, dated May 9,1939, to Sutton.

' Chemical compounds of the kind herein described are also of value as surface tension depressants in the acidization of calcareous oilbearing strata by means of strong mineral acid, such as hydrochloric acid. Similarly, some members are effective as surface tension depressants or wetting agents in the flooding of exhausted oil-bearing strata.

As to using compounds of the kind herein described as flooding agents for recovering oil from subterranean strata, reference is made to the procedure described in detail in U. S. Patent No. 2,226,119, dated December 24, 1940, to De Groote 8a Keiser. As to using compounds of the kind herein described as demulsifiers, or in particular as surface tension depressants, in combination with mineral acid or acidization of oil-bearin strata, reference is made to U. S. Patent No.'2,233,383, dated February 25, 1941, to De Groote & Keiser.

Conventional demulsifying agents employed in the treatment of oil field emulsions are'used as such, or after dilution with any suitable solvent, such as water; petroleum hydrocarbons,'such as gasoline, kerosene, stove oil, a coal tar product, such as benzene, toluene, xylene, tar acid oil, cresol, anthracene oil, etc. Alcohols, particularly aliphatic alcohols,'such as methyl alcohol, ethyl alcohol, denatured alcohol, propyl alcohol, butyl alcohol, hexyl alcohol, octyl alcohol, etc., may be employed as diluents. Miscellaneous solvents, such as pine oil, carbon tetrachloride, sulfur dioxide extract obtained in the refining. ofpetroleum, etc., may be employed as diluents. Similarly, the material or materials herein described may be admixed with one or'more of the solvents customarily used in connection with conventional demulsifying agents. Moreover, said material or materials may be used alone, or in admixture with other suitable well known classes of demullimited oil solubility. However, since such reagents are sometimes used in a ratio of 1 to 10,000, or 1 to 20,000, or even 1 to 30,000, or 1 to 40,000, or 1 to 50,000 in desalting practice, such an apparent insolubility in oil and water is not significant, because said reagents undoubtedly have solubility within the concentration employed. This same fact is true in regard to the material or materials previously described I desire to pointout that the superiority of the new demulsifier herein described is based upon its ability to treat certain emulsions more advantageously and at a somewhat lower cost than is possible with other available demulsifiers, or conventional mixtures thereof. It is believed it will find comparatively limited application, so far as the majority of oil field emulsions are concerned; but I have found that such ademulsifying agent has commercial value, as it will economically break or resolve oil field emulsions in anumber of cases whiclrcannot be treated'as easily or at so low a cost with the demulsifying' agents heretofore available.

The demulsifier herein contemplated may be employed in connection with what is commonly known as down-the-hole procedure, i. e.', bringing the demulsifier in contact with the fluids of the employed for acidification. A somewhat analogous use of my demulsifier is the removal of a residual mud sheath which remains after drilling a well by the rotaryrneth od. Sometimes the drilling mud contains added calcium carbonate or the like to render the mud susceptible to reaction with hydrochloric acid or the like, and thus expedite its removal.

The new compounds herein described are of utility, not only for the purposes specifically enumerated in detail, but also find ap lication in various other industries, processes, and for various uses where wetting agents of the conventional type are used. As to some of such additional uses which are well known, see The Expanding Application of Wetting Agents, Chemical Industries, volume 48, page 324 (1941) Demulsification, as contemplated in the present application, includes the preventive step of commingling the demulsifier with an aqueous com ponent, which would or might subsequently be come either phase of the emulsion, in absence of such precautionary measure.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A new composition of matter, comprising a sub-resinous esterification product of the for mulaz,

coon)...

(OH)(Y,'X,')

in which 1 represents a whole number not greater than 3, and :1." represents a Whole number notv greater than 5, and n, m, and m indicate .numerals from 0 to 40; q indicates a whole num-' her not over 20; Z is a hydrogen ion equivalent; Y is the radical of an acylated and oxyalkylate'd derivative of 5-amino-1,3-dioxanes; said aminodioxanes having the structuralformula:

wherein R is a member of the class consisting moo oxyethylated esters of the formula:

R CH(R)-O moowon mmn" o elia-0,."

and oxyethylated esteramides of the formula:

R OH(R)-O H RzOO in which R and B have their prior significance and RzCO is the acyl radical of a detergentforming monocarboxy acid having at least 8 and not more than 32 carbon atoms and n represents the numerals 2 to 10 and n represents the numerals 3 to 20; X is the radical of a polycarboxy acid fractional ester; said fractional ester being selected from the class consisting of (a) Fractional esters derived by reaction between a polycarboxy acid and a hydroXylated detergent-forming monocarboxy acid;

(b) Fractional esters derived by reaction between a polycarboxy acid and a monohydric alcohol ester of a hydroxylated detergent-forming monocarboxy acid;

(0) Fractional esters derived by reaction between a polycarboxy acid and a hydroxylated polyhydric alcohol ester of a detergent-forming acid.

2. The composition of matter described in claim 1, wherein the polybasic carboxy acid radicals are limited to the dicarbOXy species.

3. The composition of matter described in claim 1, wherein the polybasic carboxy acid radicals are limited to the dicarboxy species and at least one occurrence of the detergent-forming acid radicals is limited to the higher fatty acid species.

4. The composition. of matter described in claim 1, wherein the polybasic carboXy acid radicals are limited to the dicarboxy species and at least one occurrence of the detergent-forming acid radicals is limited to the unsaturated fatty acid species.

5. The composition of matter described in claim 1, wherein the polybasic carboxy acid radicals are limited to the dicarboXy species and at least one occurrence of the detergent-forming acid radicals is limited to the unsaturated fatty acid species, having 18 carbon atoms.

6. The composition of matter described in claim 1, wherein the polybasic carboxy acid radicals are limited to the dicarboxy species and at least one occurrence of the detergent-forming acid radicals is limited to ricinoleic acid radicals.

'7. The composition of matter described in claim 1, wherein the polybasic carboxy acid radicals are limited to the dicarboxy species and all occurrences of the detergent-forming acid radical are limited to ricinoleic acid radical.

8. The composition of matter described in claim 1, wherein the polybasic carboxy acid radicals are limited to the dicarboxy species and all occurrences of the detergent-forming acid radical are limited to ricinoleic acid radical and wherein n is at least 2 and not over 4.

9. The composition of matter described in claim 1, wherein the polybasic canboxy acid radicals are limited to the dicarboxy species and all occurrences of the detergent-forming acid radical are limited to ricinoleic acid radical and wherein n is at least 2 and not over 4, and the oxyethylated aminodioxane radical is part of an amide radical.

10. The composition of matter described in claim 1, wherein the polybasic carboXy acid radicals are limited to the dicarboxy species and all occurrences of the detergent-forming acid radical are limited to ricinoleic acid radical and wherein n is at least 2 and not over 4, and the oxyethylated aminodioxane radical is part of an ester radical.

11. The composition of matter described in claim 1, wherein the polybasic carboXy acid radicals are limited to the dicarboxy species and all occurrences of the detergent-forming acid radical are limited to ricinoleic acid radical and wherein n is at least 2 and not over 4, and the oxyethylated aminodioxane radical is part of an esteramide radical.

12. In the method of manufacturing the new composition of matter described in claim 1, the steps of (1) Oxyalkylating an aminodioxane;

(2) Acylating said oxyalkylated aminodioxane so as to yield a hydroxylated resultant hereinafter referred to as A;

' polybasic carboxy acid radical; and

(4) Esterifying the above mentioned resultant A with the above mentioned resultant B.

' MELVIN DE GROOTE. 

